a=input("Введите последовательность скобок:")
a=a.replace("","")
while "()" in a or "{}" in a or "[]" in a or "<>" in a:
         a=a.replace("()","")
         a=a.replace("{}","")
         a=a.replace("[]","")
         a=a.replace("<>","")

if len(a)==0:print("TRUE")
else:print("FALSE")
